9000009081859 has 2 divisors, whose sum is σ = 9000009081860. Its totient is φ = 9000009081858.

The previous prime is 9000009081787. The next prime is 9000009081961. The reversal of 9000009081859 is 9581809000009.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9000009081859 - 2¹¹ = 9000009079811 is a prime.

It is not a weakly prime, because it can be changed into another prime (9000009081559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4500004540929 + 4500004540930.

It is an arithmetic number, because the mean of its divisors is an integer number (4500004540930).

Almost surely, 2^{9000009081859} is an apocalyptic number.

9000009081859 is a deficient number, since it is larger than the sum of its proper divisors (1).

9000009081859 is an equidigital number, since it uses as much as digits as its factorization.

9000009081859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 49.

The spelling of 9000009081859 in words is "nine trillion, nine million, eighty-one thousand, eight hundred fifty-nine".